单选：每个窗和风挡包含（）A．一个加热元件和两个单圈传感器；B．两个电加热元件和两个单圈传感器；C．两个加热元件和两个双圈传感器；

题目内容：
每个窗和风挡包含（）
A．一个加热元件和两个单圈传感器；
B．两个电加热元件和两个单圈传感器；
C．两个加热元件和两个双圈传感器；
参考答案：

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